Answer:
See explanation and example below.
Explanation:
To find percent increase you must know the original amount and the new amount. Then use the formula below:
percent increase = (new amount - old amount)/(old amount) × 100%
Example:
A book used to cost $10. Then the price increased to $12. What is the percent increase?
Given information:
old amount = $10
new amount = $12
Percent increase formula:
percent increase = (new amount - old amount)/(old amount) × 100%
Apply the given information to the formula:
percent increase = ($12 - $10)/($10) × 100%
percent increase = $2/$10 × 100%
percent increase = 0.2 × 100%
percent increase = 20%
Answer: The percent increase from $10 to $12 is 20%.